{"id":34817,"date":"2025-05-01T06:02:47","date_gmt":"2025-04-30T22:02:47","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/34817.html"},"modified":"2025-05-01T06:02:47","modified_gmt":"2025-04-30T22:02:47","slug":"clickhouse%e7%ae%80%e4%bb%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/34817.html","title":{"rendered":"ClickHouse\u7b80\u4ecb"},"content":{"rendered":"<h3>OLAP\u4e0eClickHouse\u7684\u5b9a\u4f4d<\/h3>\n<h5>OLAP\u7684\u6838\u5fc3\u6982\u5ff5<\/h5>\n<ul>\n<li>\n<p>OLTP&#xff1a;\u670d\u52a1\u4e8e\u9ad8\u5e76\u53d1\u3001\u4f4e\u5ef6\u8fdf\u7684\u77ed\u4e8b\u52a1\u64cd\u4f5c&#xff08;\u5982\u94f6\u884c\u8f6c\u8d26\u3001\u8ba2\u5355\u652f\u4ed8&#xff09;&#xff0c;\u5f3a\u8c03\u6570\u636e\u7684\u589e\u5220\u6539\u67e5&#xff08;CRUD&#xff09;\u548c\u4e8b\u52a1\u4e00\u81f4\u6027&#xff08;ACID&#xff09;\u3002<\/p>\n<\/li>\n<li>\n<p>OLAP&#xff1a;\u4e13\u6ce8\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u7684\u590d\u6742\u805a\u5408\u5206\u6790&#xff08;\u5982\u7edf\u8ba1\u62a5\u8868\u591a\u7ef4\u5206\u6790&#xff09;&#xff0c;\u8981\u6c42\u9ad8\u541e\u5410\/\u6027\u80fd\u7684\u6279\u91cf\u67e5\u8be2&#xff0c;\u901a\u5e38\u6d89\u53ca\u5168\u8868\u626b\u63cf\u548c\u591a\u8868\u5173\u8054\u3002<\/p>\n<\/li>\n<li>\n<p>OLAP\u7684\u5178\u578b\u7279\u5f81&#xff1a;<\/p>\n<ul>\n<li>\u6570\u636e\u91cf\u5927&#xff1a;TB\/PB\u7ea7\u6570\u636e\u5b58\u50a8\u3002<\/li>\n<li>\u67e5\u8be2\u590d\u6742&#xff1a;\u6d89\u53caGROUP 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&#xff1a;\u590d\u6742\u805a\u5408\u67e5\u8be2&#xff08;GROUP BY\u3001\u7a97\u53e3\u51fd\u6570&#xff09;\u3001\u591a\u7ef4\u6570\u636e\u5206\u6790\u3002<\/li>\n<\/ul>\n<h5>ClickHouse\u7684\u5c40\u9650\u6027<\/h5>\n<ul>\n<li>\u4e0d\u9002\u7528\u4e8eOLTP\u573a\u666f&#xff1a;\u4e0d\u652f\u6301\u4e8b\u52a1&#xff08;ACID&#xff09;\u3001\u9ad8\u5e76\u53d1\u5355\u884c\u66f4\u65b0\/\u5220\u9664\u6548\u7387\u6781\u4f4e\u3002<\/li>\n<li>\u4e0d\u9002\u5408\u9891\u7e41\u5355\u884c\u66f4\u65b0\/\u5220\u9664&#xff1a;\u6570\u636e\u66f4\u65b0\u9700\u901a\u8fc7\u6279\u91cfALTER TABLE\u5b9e\u73b0&#xff0c;\u5ef6\u8fdf\u9ad8\u3002<\/li>\n<li>JOIN\u6027\u80fd\u8f83\u5f31&#xff1a;\u5927\u8868JOIN\u5bb9\u6613\u6210\u4e3a\u6027\u80fd\u74f6\u9888&#xff0c;\u5efa\u8bae\u9884\u8ba1\u7b97\u5bbd\u8868\u6216\u4f7f\u7528\u975e\u89c4\u8303\u5316\u8bbe\u8ba1\u3002<\/li>\n<li>\u9ad8\u5e76\u53d1\u70b9\u67e5\u8be2\u652f\u6301\u6709\u9650&#xff1a;\u9ed8\u8ba4\u8bbe\u8ba1\u9762\u5411\u9ad8\u541e\u5410\u5206\u6790\u67e5\u8be2&#xff0c;\u5355\u70b9\u67e5\u8be2&#xff08;\u5982\u6309\u4e3b\u952e\u67e5\u5355\u884c&#xff09;\u6027\u80fd\u4e0d\u5982MySQL\/Redis\u3002<\/li>\n<li>\u5b58\u50a8\u6210\u672c\u4e0e\u6570\u636e\u51b7\u70ed\u5206\u79bb&#xff1a;\u5168\u91cf\u6570\u636e\u5b58\u50a8\u6210\u672c\u8f83\u9ad8&#xff0c;\u9700\u81ea\u884c\u7ba1\u7406\u51b7\u70ed\u6570\u636e\u5206\u5c42&#xff08;\u5982\u7ed3\u5408S3&#xff09;\u3002<\/li>\n<\/ul>\n<h3>\u6570\u636e\u7c7b\u578b\u4e0e\u8868\u5f15\u64ce\u7b80\u4ecb<\/h3>\n<h5>\u6570\u636e\u7c7b\u578b<\/h5>\n<ul>\n<li>\n<p>\u57fa\u7840\u7c7b\u578b<\/p>\n<table>\n<tr>\u7c7b\u522b\u7c7b\u578b\u793a\u4f8b\u63cf\u8ff0<\/tr>\n<tbody>\n<tr>\n<td>\u6574\u6570<\/td>\n<td>Int8, UInt32<\/td>\n<td>\u6709\u7b26\u53f7\/\u65e0\u7b26\u53f7\u6574\u6570&#xff08;\u4f4d\u6570\u53ef\u90098\/16\/32\/64&#xff09;&#xff0c;\u5982UInt32\u8868\u793a0~4294967295\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u6d6e\u70b9\u6570<\/td>\n<td>Float32, Float64<\/td>\n<td>\u5355\u7cbe\u5ea6&#xff08;32\u4f4d&#xff09;\u548c\u53cc\u7cbe\u5ea6&#xff08;64\u4f4d&#xff09;\u6d6e\u70b9\u6570\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5b57\u7b26\u4e32<\/td>\n<td>String, FixedString(N)<\/td>\n<td>String\u5b58\u50a8\u4efb\u610f\u957f\u5ea6\u6587\u672c&#xff0c;FixedString(N)\u5b9a\u957f\u5b57\u7b26\u4e32&#xff08;\u9002\u5408\u679a\u4e3e\u503c&#xff0c;\u5982\u56fd\u5bb6\u4ee3\u7801&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u65e5\u671f\u65f6\u95f4<\/td>\n<td>Date, DateTime<\/td>\n<td>Date\u7cbe\u786e\u5230\u5929&#xff08;\u59822023-10-01&#xff09;&#xff0c;DateTime\u7cbe\u786e\u5230\u79d2&#xff08;\u59822023-10-01 10:00:00&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u5e03\u5c14\u503c<\/td>\n<td>Bool<\/td>\n<td>\u5b9e\u9645\u5b58\u50a8\u4e3aUInt8&#xff08;0\u62161&#xff09;&#xff0c;\u4f46\u652f\u6301true\/false\u8bed\u6cd5\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u679a\u4e3e<\/td>\n<td>Enum8, Enum16<\/td>\n<td>\u9884\u5b9a\u4e49\u503c\u7684\u5b57\u7b26\u4e32\u6620\u5c04&#xff08;\u5982Enum8(&#039;success&#039; &#061; 1, &#039;fail&#039; &#061; 2)&#xff09;&#xff0c;\u8282\u7701\u5b58\u50a8\u7a7a\u95f4\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<p>\u590d\u5408\u7c7b\u578b<\/p>\n<table>\n<tr>\u7c7b\u578b\u63cf\u8ff0<\/tr>\n<tbody>\n<tr>\n<td>Array(T)<\/td>\n<td>\u540c\u7c7b\u578b\u5143\u7d20\u6570\u7ec4&#xff08;\u5982Array(String)\u5b58\u50a8\u591a\u4e2a\u5b57\u7b26\u4e32&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>Tuple(T1, T2)<\/td>\n<td>\u5f02\u6784\u5143\u7d20\u7684\u5143\u7ec4&#xff08;\u5982Tuple(String, UInt32)\u5b58\u50a8\u540d\u79f0\u548c\u5e74\u9f84&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>Nested<\/td>\n<td>\u5d4c\u5957\u8868\u7ed3\u6784&#xff08;\u7c7b\u4f3c\u5b50\u8868&#xff09;&#xff0c;\u9700\u4e0eArray\u7ed3\u5408\u4f7f\u7528&#xff08;\u5982Nested(tag String, value Float64)&#xff09;\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<p>\u7279\u6b8a\u7c7b\u578b<\/p>\n<table>\n<tr>\u7c7b\u578b\u63cf\u8ff0<\/tr>\n<tbody>\n<tr>\n<td>LowCardinality<\/td>\n<td>\u4f4e\u57fa\u6570\u4f18\u5316\u7c7b\u578b&#xff08;\u5982\u91cd\u590d\u503c\u591a\u7684\u5b57\u7b26\u4e32\u5b57\u6bb5&#xff09;&#xff0c;\u81ea\u52a8\u538b\u7f29\u5b58\u50a8&#xff08;\u7c7b\u4f3c\u5b57\u5178\u7f16\u7801&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>Decimal(P, S)<\/td>\n<td>\u9ad8\u7cbe\u5ea6\u6d6e\u70b9\u6570&#xff08;\u5982Decimal(18, 4)\u8868\u793a\u5c0f\u6570\u70b9\u540e4\u4f4d&#xff0c;\u9002\u5408\u91d1\u878d\u91d1\u989d&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>UUID<\/td>\n<td>128\u4f4d\u5168\u5c40\u552f\u4e00\u6807\u8bc6\u7b26&#xff08;\u5982UUID\u7c7b\u578b\u5b58\u50a8\u8bbe\u5907ID&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>IPv4\/IPv6<\/td>\n<td>\u4f18\u5316\u5b58\u50a8IP\u5730\u5740&#xff08;IPv4\u7528UInt32&#xff0c;IPv6\u7528FixedString(16)&#xff09;\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ul>\n<h5>\u8868\u5f15\u64ce<\/h5>\n<ul>\n<li>\n<p>\u57fa\u7840\u5f15\u64ce<\/p>\n<table>\n<tr>\u5f15\u64ce\u7279\u70b9<\/tr>\n<tbody>\n<tr>\n<td>TinyLog<\/td>\n<td>\u65e0\u7d22\u5f15&#xff0c;\u6570\u636e\u4e0d\u538b\u7f29&#xff0c;\u9002\u7528\u4e8e\u5c0f\u8868\u6216\u4e34\u65f6\u6d4b\u8bd5&#xff08;\u5199\u5165\u540e\u4e0d\u53ef\u4fee\u6539&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>Log<\/td>\n<td>\u6309\u5217\u5b58\u50a8&#xff0c;\u652f\u6301\u5e76\u884c\u67e5\u8be2&#xff0c;\u9002\u5408\u4e2d\u7b49\u89c4\u6a21\u9759\u6001\u6570\u636e&#xff08;\u5199\u5165\u540e\u4e0d\u53ef\u4fee\u6539&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>Memory<\/td>\n<td>\u6570\u636e\u4ec5\u5b58\u50a8\u5728\u5185\u5b58\u4e2d&#xff0c;\u91cd\u542f\u540e\u4e22\u5931&#xff0c;\u9002\u5408\u9ad8\u901f\u7f13\u5b58\u6216\u4e2d\u95f4\u7ed3\u679c\u6682\u5b58\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<p>MergeTree\u5f15\u64ce\u5bb6\u65cf<\/p>\n<table>\n<tr>\u5f15\u64ce\u7279\u70b9<\/tr>\n<tbody>\n<tr>\n<td>MergeTree<\/td>\n<td>\u57fa\u7840\u5f15\u64ce&#xff0c;\u652f\u6301\u4e3b\u952e\u7d22\u5f15\u3001\u6570\u636e\u5206\u533a&#xff08;PARTITION BY&#xff09;\u548c\u540e\u53f0\u5408\u5e76&#xff08;Merge&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>ReplacingMergeTree<\/td>\n<td>\u5728MergeTree\u57fa\u7840\u4e0a&#xff0c;\u81ea\u52a8\u53bb\u91cd\u76f8\u540c\u6392\u5e8f\u952e\u7684\u6570\u636e&#xff08;\u4fdd\u7559\u6700\u540e\u5199\u5165\u7248\u672c&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>SummingMergeTree<\/td>\n<td>\u81ea\u52a8\u5408\u5e76\u65f6\u5bf9\u6570\u503c\u5217\u6c42\u548c&#xff08;\u5982\u7edf\u8ba1\u76f8\u540c\u7ef4\u5ea6\u7684\u6307\u6807\u7d2f\u52a0&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>AggregatingMergeTree<\/td>\n<td>\u5408\u5e76\u65f6\u9884\u805a\u5408\u6570\u636e&#xff0c;\u9700\u914d\u5408AggregateFunction\u7c7b\u578b\u4f7f\u7528&#xff0c;\u9002\u5408\u5b9e\u65f6OLAP\u3002<\/td>\n<\/tr>\n<tr>\n<td>CollapsingMergeTree<\/td>\n<td>\u901a\u8fc7\u6807\u8bb0\u5b57\u6bb5&#xff08;sign&#xff09;\u5408\u5e76\u65f6\u6298\u53e0\u6570\u636e&#xff08;\u5982\u5220\u9664\u65e7\u7248\u672c\u8bb0\u5f55&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>VersionedCollapsingMergeTree<\/td>\n<td>\u5728\u6298\u53e0\u57fa\u7840\u4e0a\u652f\u6301\u7248\u672c\u63a7\u5236&#xff08;\u5982\u6309\u65f6\u95f4\u6233\u4fdd\u7559\u6700\u65b0\u72b6\u6001&#xff09;\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<p>\u96c6\u6210\u5f15\u64ce<\/p>\n<table>\n<tr>\u5f15\u64ce\u7279\u70b9<\/tr>\n<tbody>\n<tr>\n<td>Kafka<\/td>\n<td>\u4eceKafka\u4e3b\u9898\u6d88\u8d39\u6570\u636e&#xff08;\u9700\u6307\u5b9aBroker\u3001Topic\u548c\u683c\u5f0f&#xff09;&#xff0c;\u5b9e\u65f6\u5199\u5165ClickHouse\u3002<\/td>\n<\/tr>\n<tr>\n<td>MySQL<\/td>\n<td>\u6620\u5c04MySQL\u8868\u5230ClickHouse&#xff08;\u7c7b\u4f3c\u5916\u90e8\u8868&#xff09;&#xff0c;\u652f\u6301\u8bfb\u5199\u64cd\u4f5c&#xff08;\u4f46\u6027\u80fd\u4e0d\u5982\u539f\u751f\u8868&#xff09;\u3002<\/td>\n<\/tr>\n<tr>\n<td>HDFS<\/td>\n<td>\u76f4\u63a5\u8bfb\u53d6HDFS\u6587\u4ef6&#xff08;\u5982Parquet\/ORC\u683c\u5f0f&#xff09;&#xff0c;\u9002\u5408\u79bb\u7ebf\u5206\u6790\u3002<\/td>\n<\/tr>\n<tr>\n<td>JDBC\/ODBC<\/td>\n<td>\u901a\u8fc7JDBC\u6216ODBC\u534f\u8bae\u8fde\u63a5\u5916\u90e8\u6570\u636e\u5e93&#xff08;\u5982PostgreSQL&#xff09;\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ul>\n<h5>\u5f15\u64ce\u9009\u62e9<\/h5>\n<ul>\n<li>\u9ed8\u8ba4\u9009\u62e9&#xff1a;\u4f18\u5148\u4f7f\u7528MergeTree\u7cfb\u5217\u5f15\u64ce&#xff08;90%\u573a\u666f\u9002\u7528&#xff09;\u3002<\/li>\n<li>\u5b9e\u65f6\u805a\u5408&#xff1a;AggregatingMergeTree &#043; \u7269\u5316\u89c6\u56fe\u5b9e\u73b0\u9884\u8ba1\u7b97\u3002<\/li>\n<li>\u5916\u90e8\u6570\u636e&#xff1a;\u4e34\u65f6\u5206\u6790\u4f7f\u7528MySQL\u6216HDFS\u5f15\u64ce&#xff0c;\u957f\u671f\u5b58\u50a8\u5efa\u8bae\u5bfc\u5165\u672c\u5730\u8868\u3002<\/li>\n<li>\u65e5\u5fd7\u573a\u666f&#xff1a;\u9ad8\u541e\u5410\u5199\u5165\u9009\u62e9MergeTree&#xff0c;\u5c0f\u6570\u636e\u91cf\u6d4b\u8bd5\u7528TinyLog\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.2k\u6b21\uff0c\u70b9\u8d5e22\u6b21\uff0c\u6536\u85cf6\u6b21\u3002ClickHouse\u662f\u4e00\u6b3e\u4e13\u6ce8\u4e8eOLAP\uff08\u8054\u673a\u5206\u6790\u5904\u7406\uff09\u7684\u5217\u5f0f\u5b58\u50a8\u6570\u636e\u5e93\uff0c\u4ee5\u5176\u6781\u81f4\u7684\u67e5\u8be2\u6027\u80fd\u3001\u9ad8\u538b\u7f29\u7387\u548c\u5b9e\u65f6\u5206\u6790\u80fd\u529b\u8457\u79f0\u3002\u5b83\u901a\u8fc7\u5217\u5f0f\u5b58\u50a8\u3001\u5411\u91cf\u5316\u67e5\u8be2\u5f15\u64ce\u53ca\u5206\u5e03\u5f0f\u67b6\u6784\uff0c\u6ee1\u8db3\u5927\u89c4\u6a21\u6570\u636e\u590d\u6742\u805a\u5408\u9700\u6c42\uff0c\u9002\u7528\u4e8e\u5b9e\u65f6\u65e5\u5fd7\u5206\u6790\u3001\u7528\u6237\u884c\u4e3a\u5206\u6790\u7b49\u573a\u666f\u3002\u7136\u800c\uff0cClickHouse\u4e0d\u652f\u6301\u4e8b\u52a1\uff08ACID\uff09\uff0cJOIN\u6027\u80fd\u8f83\u5f31\uff0c\u4e14\u5bf9\u5355\u884c\u66f4\u65b0\/\u5220\u9664\u6548\u7387\u4f4e\uff0c\u4e0d\u9002\u5408OLTP\u573a\u666f\u3002\u5176\u4e30\u5bcc\u7684\u8868\u5f15\u64ce\uff08\u5982MergeTree\u7cfb\u5217\uff09\u548c\u6570\u636e\u7c7b\u578b\uff08\u5982LowCardinality\u4f18\u5316\u7c7b\u578b\uff09\u4e3a\u4e0d\u540c\u4e1a\u52a1\u9700\u6c42\u63d0\u4f9b\u4e86\u7075\u6d3b\u652f\u6301\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[697],"topic":[],"class_list":["post-34817","post","type-post","status-publish","format-standard","hentry","category-server","tag-clickhouse"],"yoast_head":"<!-- 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